Use the same length for all scene graph numeric data

Having one int between all the qint64 is really not worth it. Also, the
clients were not picking that up correctly.

Change-Id: I9a9bc1c26c7518e1b666b788fa41f83c714a6db5
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Properly collect polish timings from all render loops

Previously the polish timings were collected incorrectly from the
windows render loop and not at all from the basic render loop. By
collecting the polish times at the right places we can get rid of
the 2-argument profile macro as well.

Task-number: QTBUG-39876
Change-Id: I0b4aaf87162c652b8dcea6cd4f54db053f8312fe
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Fix output of swap times for basic render loop

The swap time was treated as absolute by the qCDebug output, but was
actually relative.

Change-Id: Ia1539b8f8305ca37430022803419eb12a05934cb
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>